CVE-2026-19118 — Race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution
A time-of-check time-of-use race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution. Exploitation required an authenticated us…
Published: 2026-09-01 · CVSS: 7.7 · CVSS 4.0
A time-of-check time-of-use race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution. Exploitation required an authenticated user with write access to a repository and precise timing of concurrent upload requests. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.20, 3.18.14, 3.19.11, 3.20.7, and 3.21.5. This vulnerability was reported via the GitHub Bug Bounty program.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7